package two;
class Aoo{
    Aoo(){
        System.out.println("超类构造方法");
    }
}
class Boo extends Aoo{
    Boo(){
        super(); //默认的，调用超类的无参构造方法
        System.out.println("派生类构造方法");
    }
}
public class OverRide3 {
    public static void main(String[] args) {
        Boo a = new Boo();
    }
}
